baber/WOPTO huggingface dataset:
Patent GB-1286780-A (GB)
Title: An athermapeutic apparatus
IPC: A61N1/40
Filed: 1971-06-15
Abstract: 1286780 Athermapeutic apparatus DIAPULSE CORP OF AMERICA 15 June 1971 [2 July 1970] 28039/71 Heading A5R An ultra-short wave athermapeutic apparatus for therapeutic treatment of a patient comprises oscillation generating and doubling means 1 operable to produce continuous high frequency electrical oscillations of predetermined frequency which are doubled to produce an output from the oscillating and doubling means. The generating and doubling means includes a crystal (XTAL) a keying amplifier 2 which includes a transistor (Q1) providing the keying action to make tube (V2) alternately conducting and non-conducting thereby producing a pulsed R.F. signal. The keyer amplifier includes a safety relay (RY1) operable to interrupt the operation of said oscillating and doubling means upon excess current flowing through the plate circuit of a tube V2, a power amplifier and doubler 4 connected to the output of said keying amplifier 2 for doubling the frequency output therefrom and provided with a plurality of switches (SW1 through SW6) selectively operable to preselect the peak output power produced by said power amplifier and doubler. A treatment head 5 is connected to said power amplifier and doubler and may be juxtaposed with a patient for transmitting the high frequency pulsed oscillations into selected areas of a patient's body. A pulse generator 3 is provided with a plurality of switches SW7 through SW12 selectively operable to cause said keying amplifier to establish a preselected pulse duration and frequency of the output oscillations of said keying amplifier and said pulse generator is connected to a frequency meter 6 and causing said meter to register the power output from the athermapeutic apparatus. There is also a low voltage source 8 to supply a plurality of low voltages of differing magnitude via resistors 37, 38, 39 and zener diodes D13, D14, D15 connected across the rectified D.C. output, and a high voltage source 9 operable after the lapse of a preselected time period to the thermionic cathodes of the tubes (V1), (V2), (V3), (V4), as well as the heater filament of the time-delay device TDR to supply a plurality of relatively high voltages. A power control 7 is manually operable via a plurality of switches SW13 through SW15 to cause activation of both the low and high voltage sources 8, 9 and thereby cause the transmission of high frequency oscillation of preselected pulse duration and frequency from said treatment head to a patient.
Patent GB-1156575-A (GB)
Title: Pigmented Material
Inventor: LEDERER GERALD
IPC: C09C1/36
Filed: 1967-06-17
Abstract: 1,156,575. Coated TiO 2 . BRITISH TITAN PRODUCTS CO. Ltd. 7 May, 1968 [17 June, 1967], No. 28051/67. Heading C1N. [Also in Division D2] A TiO 2  pigment is coated with hydrous A1 2 0 3 , an inorganic phosphate, and an organic polyol. The amounts used may be 0À5-10% Al 2 0 3 , 0À2-5% P 2 O 5 , and 0À1-1% polyol, by wt. of TiO 2 . The coating may also contain hydrous 5i0 2  (0À2-5%) and hydrous Ti, Zr, and Ce oxides (each 0À35-7À5%). The polyol may be pentaerythritol, trimethylol propane, triethanolamine, or triisopropanolamine. The TiO 2  may be coated by adding to an aqueous slurry of TiO 2  at 35-60‹ C. a solution of the metal salts (e.g. Al sulphate, Na aluminate, Na silicate) followed by a phosphate solution (e.g. NH 4 H 2 PO 4 , H 3 PO 4 , or alkali metal phosphate). The solution is then neutralized with alkali, e.g. NaOH or acid, e.g. H 2 SO 4 , to a pH of 4-8, and 'the pigment is filtered, washed, dried, and fluid energy milled in steam. The polyol may be added during milling, or may be dissolved in water and stirred with the pigment before drying. When Al 2 (SO 4 ) 3  and H 3 P0 4  are used the coating is Al phosphate. When the pigment is coated with Al and Ti oxides, the coating solution may be obtained by dissolving hydrous TiO 2  in H 2 50 4  at 150‹ C., then dissolving hydrous A1 2 0 3  at 135‹ C. The coated pigment may be treated with anionic or polyacrylate dispersants. The TiO 2  may be anatase or rutile and may be obtained by the sulphate or halide process.
Patent GB-705913-A (GB)
Title: Improvements in or relating to fractional distillation and similar liquid-vapor contacting apparatus
IPC: B01D3/26
Filed: 1950-11-17
Abstract: <PICT:0705913/III/1> Fractional distillation apparatus is made up of at least two stages each comprising an ejector pump of the Venturi type and a liquid / vapour separator wherein the vapour is utilized as propellant in the pump, and the reflux liquid is sucked into the throat of the pump and intimately dispersed in the vapour the dispersion being discharged from the pump into the associated liquid / vapour separator.  The separators may be of the centrifugal type, such as cyclones.  The apparatus shown comprises four stages A, B, C, and D each comprising an ejector pump 1, a separator 5, and a liquid-reservoir 6 which contains liquid up to the level of the short transversal line.  Pump 1a is supplied with vapour from a still (not shown).  The vapours leaving separators 5a, 5b, 5c, are introduced into pumps, 1b, 1c, 1d respectively.  The vapour leaving separator 5d is led to a partial condenser (not shown).  The reflux from the condenser is supplied via a liquid-reservoir to the throat of pump 1d, and the liquids separated in separators 5d, 5c, 5b, are introduced via liquid-reservoirs 6d, 6c, 6b, into the throats of pumps 1c, 1b, 1a, respectively.  The proper distribution of pressures throughout the various stages is achieved by connecting the upper part of each liquid-reservoir by a vapour-conduit 9 to the discharge-pipe of the pump of the succeeding stage.  The reservoirs also assist in the maintenance of thermal equilibrium in each stage. The liquid withdrawn from separator 5a may be returned to the still, or it may be eliminated from the system.  The distillation of hydrocarbons is referred to.  Specification 655,038, [Group XII], is referred to.
Patent GB-883331-A (GB)
Title: Stable water-soluble acetylsalicylic acid derivative
IPC: C07C69/86
Filed: 1960-08-15
Abstract: The invention comprises ornithine acetylsalicylate and the preparation thereof by reacting acetylsalicylic acid with ornithine such as dl- or l-ornithine.  Detailed examples are given.
Patent GB-191507-A (GB)
Title: Improvements in rotary scrubbing brushes
IPC: B60S3/04
Filed: 1921-10-24
Abstract: 191,507. Anderson, R. Oct. 24, 1921. Brushes, hand - supported, driving by power; self-feeding brushes. - A rotary scrubbing brush comprises a brush-stock 2 secured to a turbine whee 5 rotatably mounted in a casing 8, the wheel being provided with vanes 6 extending from the periphery of the wheel to arcuate apertures 4 disposed, as shown, with respect to an outer circle of bristles 3. The casing 8 is provided with a socket 11 having a delivery duct 13 fitted with a needle valve 14 for regulating the supply of fluid to the vanes 6. In a modification, the vanes project outwardly from a conically-shaped wheel, the outer edges of the vanes contacting with a ring or shield secured to the brush-stock.
Patent GB-321780-A (GB)
Title: Improvements in or relating to moving signs and advertising and like devices
IPC: G09F19/00
Filed: 1928-10-02
Abstract: 321,780. Linton, R. H., and Gheury de Bray, M. E. J. Oct. 2, 1928. Moving and changing apparatus; illumination, changing advertisements by controlling; lamps, rotating and oscillating supports for.-A display device comprises in combination one or more sets of manufactured articles, one or more sets of descriptive texts relative thereto, and a pointer for each set all the articles and texts being visible simultaneously from one view-point when the pointers are removed. The pointers are actuated at the same time so as to indicate one an article and the other the corresponding text. The pointers may take any form, such as reciprocating or rotating fingers or apertured screens, fields of lamps of which selected ones are illuminated, beams of light, or combinations of these, or the sets themselves may move. Fig. 3 shows three dials 1, 2, 3 of which 2 and 3 carry descriptive matter and the dial 1 supports articles. Fig. 5 depicts two pivoted pointers 3, 4 for articles in spaces 1, 2, the pointer 3 bearing texts which are selectively indicated by a slot in the pointer 4. In the form shown in Fig. 7 articles on a panel 6 are disclosed by angularly arranged slots, one in a reciprocating screen 5 and the other in a flexible band 2 wound on and off rollers 3. Texts on a stationary board above the screen 5 are indicated by a pointer on the screen. Fig. 11 shows frames of lamps surrounding articles on an area 1, the frames being selectively lit while a. luminous pointer 2 rotates to indicate texts 3, The lamps may be coloured and may flicker, and may be of rarified gas type. The pointers may move uniformly or with a jerky motion. The lamps may be switched on by a resonance device actuated by an electric current or by ether waves. Specification 322,833, [Class 75 (v), Lamps &c., Kinds &c. of], is referred to.
Patent GB-340265-A (GB)
Title: Process for making whipped cream
IPC: A47J43/12
Filed: 1929-06-22
Abstract: 340,265. Making whipped cream. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Cohnitz, E.; 5, Bellevuestrasse, Berlin.) June 22, 1929, No. 28341/30. Divided on 340,268. [Class 86.] Whipped cream is prepared by forcing cream and a gas together under pressure through a large-surface mixing body such as meerschaum or pumice stone. As shown, cream is placed in a vessel 1 into which air is forced by a pipe 6. The cream is driven into a pipe 8 together with some air from the pipe 6. The cream and air are forced through a tube 9 packed with gravel or glass beads 10. The whipped cream issues at the outlet 12. By using a gas other than air, a medicinal cream can be obtained.
Patent GB-339689-A (GB)
Title: Improvements in or relating to soft iron electric measuring instruments
IPC: G01R5/14
Filed: 1929-09-19
Abstract: 339,689. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampen fabrieken). Sept. 19, 1929. Electromagnetic current meters.-An instrument of the moving-iron type has a coil 1 enclosed in a magnetic sheath 2 and enclosing two pole-pieces 5, 6 so formed that the length of the air-gap between them changes round the circumference. Between the coil 1 and the pole-pieces 5, 6 may be arranged a non-magnetic metal bushing 4, and the bushing 4 and the sheath 2 may be slit to reduce eddy-currents. The iron 7 is a plate narrower at one end than the other and bent to a portion of a cylinder. It is carried on a spindle 9 in a cylindrical casing 17 inside the pole-pieces 5, 6. The casing 17 is secued to a sector-shaped casing 21 containing a damping vane. A sparal restoring-spring 8 is attached to the spindle 9 and casing 17.
Patent GB-1292471-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: NASSER GAMAL EL DIN
IPC: F25J5/00
Filed: 1970-06-12
Abstract: 1292471 Tubular heat exchangers LINDE AG 12 June 1970 [14 June 1969] 28474/70 Heading F4S A condenser-evaporator arranged within a cylindrical rectification column 1 comprises a plurality of spaced apart rows of parallel tubular passages 2 formed by pairs of cooperating sheet panels 3, 4 each having semicylindrical corrugations therein. The passages of adjacent rows are arranged in staggered relationship with respect to each other. In operation liquid oxygen from a plate or bubble cap 30 flows downwardly through two mutually opposite cylindrical segments 12 and 13 to the bottom of the tubular passages 2 and then upwardly through the passages 2. Gaseous nitrogen flows upwardly into annular spaces 17 and 18 from whence it flows laterally through the interspaces 19 between adjacent pairs of tube sheet panels and is condensed by the liquid oxygen. Uncondensed helium is removed from the nitrogen by way of discharge connections 23, 24 located above a horizontal partition wall 28 which has a central elongate aperture 35 therein. The condensate is removed from the bottom of the interspaces 19, see arrows 34, to the part of the column below the condenserevaporator. The oxygen leaves the top of the tubular passages 2 in gaseous form, sec arrows 32, and flows through the plate or cap 30 into the part of the column above the latter. The sheet panels 3, 4 are provided on their condensing surfaces with fin arrangements (see Figs. 4-6, not shown) to break up condensate film. One or more oblique collecting fins may be disposed below banks of closely spaced vertical fins to guide the condensate to a collecting channel(s) at the side(s) of each panel (see Figs. 4 and 5). In another form (Fig. 6) the condensate collecting fins may have several oblique sections (45, 46) with condensate drip spouts (47) projecting into the interspaces: a perforated condensate discharge sheet of synthetic resin connects all the drip spouts. The fins and drip spouts may be pressed in the sheet panels 3, 4 or may comprise separate sheet structures attached to the. panels e.g. by dip soldering.
Patent GB-1389922-A (GB)
Title: Process control
IPC: B29C48/92
Filed: 1972-06-19
Abstract: 1389922 Automatic extrusion control E I DU PONT DE NEMOURS & CO 19 June 1972 [23 June 1971] 28521/72 Heading B5A [Also in Division G3] The size of an extrudate is maintained at a required value by changing process variables according to a predetermined mathematical model. As shown, material 52 from extruder 51 is fed on belts 53c, 54c, 56c in vulcanizing, expanding normalizing ovens 53, 54, 56 to roll 58. The size of the material is measured at 59 and, if not within predetermined limits, the variables of the extruder, e.g. pressure or temperature are adjusted automatically according to a mathematical model held in a computer and continuously changed according to the results obtained, the extruder variables preferably being selected in descending order of importance. Similarly, the conditions in the ovens, e.g. temperature or belt speed may be adjusted according to material size as measured at 60, to control the final extrudate size. The extruded material e.g. for use as hose, tubing, coating on wire or tyre thread, may be natural rubber. dienes or copolymers of dienes with styrene, acrylates, acrylonitrile, isobutylene, vinyl homopolymers or copolymers with polyolefins, and may include chemical blowing agents, fillers, softeners, accelerators, antioxidants, reinforcing pigments or vulcanizers.
Patent GB-1062256-A (GB)
Title: Improvements relating to the processing of azo pigments, and the resulting products
IPC: C09C3/00
Filed: 1964-07-10
Abstract: Crude aqueous cakes of azo pigments having a molecular weight above 500 are dehydrated and simultaneously purified without an intermediate drying step by mixing the crude aqueous pigment cake with an organic liquid boiling above 100 DEG  C. and which is inert to both the pigment and water, heating the mixture to above 100 DEG C. to distill off substantially all the water and then removing the organic liquid from the pigment by filtration, decantation or centrifuging; the resulting pigment being washed if necessary and dried.  After substantially all the water has been removed by distillation, the water-free suspension may be heated to 100 DEG  to 270 DEG  C. before the organic liquid is removed.  Organic liquids used include aliphatic hydrocarbons, aromatic mono- or poly-nuclear hydrocarbons which may be hydrogenated, halogenated hydrocarbons, nitrohydrocarbons, aliphatic and aromatic amines, heterocyclic amines, alcohols, diols, ethers, ketones, sulphoxides, and fatty acid amides. Mixtures may also be used. The examples describe the use of xylene; dimethylformamide; 1,2 - dichlorobenzene; N,N - dimethylaniline; toluene and pyridine.
Patent GB-790387-A (GB)
Title: Circuit arrangements utilizing semiconductive devices and methods for making such devices
IPC: H03K4/787
Filed: 1955-10-10
Abstract: 790,387. Semi-conductor devices. WESTERN ELECTRIC CO., Inc. Oct. 10, 1955 [Oct. 26, 1954], No. 28786/55. Class 37. [Also in Group XL (c)] An electric circuit comprises a PIN semi-conductor body with electrodes at each end, a voltage being applied between the electrodes sufficient to bias the intrinsic region to a point of negative resistance, or to establish carrier multiplication in the intrinsic zone. Fig. 1 shows a silicon body with PIN regions 11, 13 and 12 respectively. The centre zone needs to be substantially intrinsic such that the field strength across this region does not vary more than 25 per cent even for fields approaching breakdown strength. The end zones should be heavily doped and the necessary avalanche breakdown voltage varies between 10 to several hundred volts when the I region has a thickness between 10<SP>-4</SP> and 10<SP>-2</SP> mm. The thick line and the dotted line in Fig. 2 illustrates the field strength before and after breakdown, respectively, and this indicates that the negative resistance and breakdown effects will be maintained over a region extending from the breakdown voltage to a voltage less than this voltage. Fig. 4 shows a relaxation oscillator circuit in which the PIN device in parallel with a reactance 23 is in series with resistor 22 and battery 21 which provides the reverse bias. The device may also be connected in series with a signal source and a load, to provide an amplifier. The intrinsic region may be produced by first diffusing impurities into the end zones to form a PN junction, the acceptor and donor impurities being selected so that one has a much higher mobility in the semi-conductor than the other; for example, boron and lithium may be introduced into silicon. The temperature of the silicon body is then raised to 125 C. and a reverse bias applied which results in the mobile. lithium atoms diffusing towards the P-zone to compensate the immobile boron atoms in the junction region, and thus produce the intrinsic zone. When the zone is of the desired width, the body is cooled and the applied voltage removed. In an alternative arrangement, impurities having similar mobilities are used, and a forward bias is applied during the heating, so that in the neighbourhood of the junction, donors tend to diffuse into the acceptor region and vice versa, thus producing the intrinsic zone. Germanium, or germanium-silicon alloys may be used in place of silicon.
Patent GB-1003584-A (GB)
Title: Improvements in or relating to jet propulsion engines
Inventor: EICHHOLTZ KONRAD AUGUST WERNER
IPC: B64C29/00
Filed: 1962-07-27
Abstract: 1,003,584. Gas turbine jet engines. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 27, 1962 [Aug. 4, 1961 ], No. 28865/62. Heading F1J. [Also in Division B7] An intermediate part 2 of a propulsive duct 1, 2, 3, contains a gas turbine engine, and is pivotable between the position shown in broken line and the position shown full, about a hollow shaft 18, which is fed with compressed air from a gas generator (not shown). The air passes through duct 21 and manifold 17 to combustion equipment 12 and turbine 11, the latter driving a ducted fan 10 between adjustable guide vanes 13. The fan air may be heated by a combustor 14, and this air and the turbine exhaust by a reheat section 15. Compressed air is also fed from shaft 18 through duct 22 to a nozzle area varying device 16. Specification 955,013 is referred to.
Patent GB-341936-A (GB)
Title: Improvements in resilient surfaces for seats, cushions and upholstery
IPC: B68G1/00
Filed: 1929-09-24
Abstract: Hair or other fibrous material is wetted with a flexible adhesive and moulded into shaped pads for upholstering without being compressed, after which the adhesive is dried, or vulcanized if rubber solution or latex is used.
Patent GB-1350833-A (GB)
Title: Imaging method
IPC: G03G5/147
Filed: 1971-06-21
Abstract: 1350833 Electro-photography XEROX CORP 21 June 1971 [26 June 1970] 28936/71 Heading G2H A xerographic member, e.g. drum, comprising a conductive substrate, an intermediate photo-conductive coating, and a top insulative coating is uniformly positively or negatively charged, exposed to at least one negative light pattern, recharged (at the same potential and polarity), and exposed to at least one positive light pattern, the initially formed charge image corresponding to the negative light pattern being converted by the steps of further charging and exposure into a charge image corresponding to the equivalent positive light pattern. The substrate or top coating is transparent. The electrical thickness ratio of the intermediate and top coatings may be 0.5-2. The negative light pattern may be projected from a cathode ray tube or microfilm transparency. The charge images are developed with toner and fixed, optionally after transfer.
Patent GB-669213-A (GB)
Title: Improvements in or relating to control devices for solenoid operated engine valves
IPC: F02M61/18
Filed: 1949-11-11
Abstract: 669,213. Interrupters. ROLLINSON, E. W. (Thompson Products, Inc.). Nov. 11, 1949. No. 28948/49. Class 38 (v). [Also in Group XXVII] The circuits of electromagnetically operated valves, e.g. fuel injection valves of internalcombustion engines, are controlled by cams 12 each of which operates simultaneously a pair of tappers 23, 24 which respectively open a normally closed switch 27 to de-energize one solenoid and close a normally open switch 27 to energize another solenoid, whereby the valve is opened, the switches 27, 28 and tappets 23, 24 being carried by a carriage 22 pivoted at 10a and tiltable to vary the period of engagement of the tappets with the cams and hence the valveopening period. The switch 27, Fig. 3, comprises a spring-loaded rocker 29 of insulating material pivoted at 30 and actuated by the tappets 23 through an adjustable stop 36 to break the normally closed contacts 31, 32 in the circuit of the first solenoid. The switch 28, Fig. 4, comprises a spring-loaded rocker 37 of insulating material pivoted at 30 and actuated by the tappet 24 to close a contact 38 against a yieldable contact 44 carried by a spring-loaded rocker 43 pivoted at 30. The initial positions of the rockers 47, 43 are adjusted by stops 41, 48, and the tappets 23, 24 are adjustable by means of nuts 26. The carriage 22 is adjusted about the pivot 10c by a link 51 connected through a lever 52 to the accelerator pedal connection.
Patent GB-718678-A (GB)
Title: Improvements in or relating to nitrocellulose coating compositions
Inventor: BRANDNER JOHN DAVID
IPC: C09D101/18
Filed: 1952-11-17
Abstract: Cellulose nitrate coating compositions comprise as plasticizer a phenoxyethyl or phenoxypropyl ester of oleic acid or of tall oil in proportions of 0.1 to 2.0 parts by weight per 1 part by weight of cellulose nitrate.  The cellulose nitrate used may contain 10.7-12.2 per cent. of nitrogen.  In an example, a lacquer for coating metal foil or for use as a heat-sensitive adhesive comprises cellulose nitrate, phenoxyethyl tall oil ester, xylol, ethyl alcohol, butyl alcohol and butyl acetate.  In another example, a composition for application to fabrics comprises cellulose nitrate, castor oil, phenoxyethyl oleate, toluene, ethyl alcohol and methyl ethyl ketone. Other examples describe compositions for coating paper, leather, furniture and masonry. Ingredients, additional to the cellulose nitrate, and phenoxyethyl and phenoxypropyl esters, include chrome yellow, blown castor oil, maleic acid modified ester gum, methyl isobutyl ketone, ester gum, castor oil modified alkyd resin, dewaxed dammar resin, dioctyl phthalate and ethoxyethanol.  In another example, a lacquer emulsion is obtained by first forming a lacquer phase comprising cellulose nitrate, phenoxyethyl tall oil ester, polyoxyethylene sorbitan monolaurate, ethyl alcohol, butyl alcohol, methyl isobutyl ketone and xylol, and a water phase comprising water and polyoxyethylene sorbitan monolaurate, and then mixing the two phases with vigorous agitation.